IOLAN SDSM Device Servers
Device Servers with integrated V.92 Modem

- 1 software selectable RS232/422/485 serial port interface
- Integrated V.92 modem - RJ11 jack
- 10/100 Ethernet
- Advanced security features for data encryption, user authentication and event management
For secure serial to Ethernet connectivity applications requiring dial-up modem access, the IOLAN SDSM Device Server is the most advanced compact product available on the market today. Delivering high performance in a compact size, an IOLAN SDSM, with integrated V.92 modem, offers extensive security, flexibility and next generation IPv6 technology. It is ideal for applications that require remote device/console management, data capture or monitoring over an IP network or dial-up modem connection.
Why IOLAN SDSM Device Servers are the preferred choice:
- High performanc 66Mhz, 87 MIPS processor for the best performance on the market
- On-board RJ11 modem connection prvides a secure and reliable connection to the POTS network
- TrueSerial® packet technology delivers the most authentic serial connections across Ethernet for serial protocol integrity
- Indicators for network and serial interfaces for easy troubleshooting
- Plug & Play installation utility eliminates configuration hassles for all IOLAN's on your IP network
- TruePort – Perle’s com/tty redirector for serial based applications operates on Windows, Vista, Linux, Solaris, SCO and Unix
- Power over serial cable eliminates costs of a separate power installation
- Next Generation IP support ( IPv6 ) for investment protection and network compatibility
- Compact and protective solid steel enclosure for tabletop, wall mount or DIN rail mounting
- Java-free browser access to remote serial console ports via Telnet and SSH

Secure Serial to Ethernet Connectivity
The IOLAN SDSM Device Server enables administrators to securely access remote serial console ports on equipment such as PBX, servers, routers, network storage equipment and security appliances through an IP network or via the integrated V.92 dial-up modem. Sensitive data such as credit card holder information is protected through standard encryption tools such as Secure Shell (SSH) and Secure Sockets Layer (SSL). Access by authorized users is assured via authentication schemes such as RADIUS, TACACS+, LDAP, Kerberos, NIS and RSA Security's SecurID tokens.
By using encryption technologies, an IOLAN can protect sensitive and confidential data from a serial device such as a credit card reader before being sent across a corporate Intranet or public Internet. For compatibility with peer encryption devices, all of the major encryption ciphers such as AES, 3DES, RC4, RC2 and CAST128 are fully supported.
Recognized as the most secure method for communicating to remote private networks over the Internet, the IPSec standard provides robust authentication and encryption of IP packets at the network layer of the OSI model. As a standard it is ideal for multi-vendor interoperation within a network providing flexibility and the ability to match the right solution for a particular application.
IOLAN Device Server Plug-ins
By choosig a Perle IOLAN Device Server you can rest assured that virtually any device with a serial COM port will operate in conjunction with your desired application exactly as it did when you had it directly connected. In the unlikely event that the Perle IOLAN Device Server does not enable this out of the box, Perle will make it work.
Perle IOLAN Device Servers utilize customer installable "Device Plug-ins" to successfully network devices where other solutions have failed. Request a free engineering consultation now.
Advanced IP Technology
With support for Next Generation IP (IPv6) the IOLAN Serial to Ethernet Device Server range provides organizations with investment protection to meet this rapidly growing standard.
Demand for IPv6, which is compatible with IPv4 addressing schemes, is driven by the need for more IP address. With the implementation and rollout of advanced cellular networks, a robust method is needed to handle the huge influx of new IP addressable devices on the Internet. In fact, the US Department of Defense has mandated that all equipment purchased be IPv6 compatible. In addition, all major Operating Systems such as Windows, Linux, Unix and Solaris, as well as routers, have built-in support for IPv6.
It is therefore important for end users and integrators to select networking equipment that incorporates the IPv6 standard. The IOLAN line with support for IPv6 already built in, is the best choice in serial to Ethernet technology.
Flexible and Reliable Serial to Ethernet Connections
An IOLAN SDSM Device Server is ideal for connecting serial based COM port, UDP or TCP socket based applications to remote devices. Perle’s TruePort re-director provides fixed TTY or COM ports to serial based applications enabling communication with remote devices connected to Perle IOLAN's either in encrypted or clear text modes. You can also tunnel serial data between devices across an IP network.
Perle's Device Management software provides better centralized control of multiple units resulting in maximum uptime for your remote equipment.
All IOLAN SDSM models have added protection against electrostatic discharges and power surges with robust 15Kv ESD protection circuitry enabling organizations to utilize this solution in the field with confidence.
Lifetime Warranty
All Perle IOLAN SDSM Serial to Ethernet Device Servers are backed by the best service and support in the industry including Perle's unique lifetime warranty. Since 1976 Perle has been providing its customers with networking products that have the highest levels of performance, flexibility and quality.
Software Features - IOLAN SDSM Device Server with integrated V.92 Modem
Serial Port Access | |
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Connect directly using Telnet / SSH by port and IP address | |
Connect with EasyPort menu by Telnet / SSH | |
Use an internet browser to access with HTTP or secure HTTPS via EasyPort Web menu | |
Java-free browser access to remote serial console ports via Telnet and SSH | |
Ports can be assigned a specific IP address ( aliasing ) | |
Multisession capability enables multiple users to access ports simultaneously * | |
Multihost access enables multiple hosts/servers to share serial ports | |
Accessibility | |
In-band ( Ethernet ) and out-of-band ( dial-up modem ) support | |
Dynamic DNS enables users to find a console server from anywhere on the Internet | |
Domain name control through DHCP option 81 | |
IPV6 and IPV4 addressing support | |
Availability | |
Primary/Backup host functionality enables automatic connections to alternate host(s) | |
Security | |
SSH v1 and v2 | |
PCI DSS Compliance: TLS v1.2, TLS v1.1, TLS v1.0, SSL v3.0, SSL v2.0 | |
SSL Server and SSL client mode capability | |
SSL Peer authentication | |
IPSec VPN : NAT Traversal, ESP authentication protocol | |
SSH ciphers: AES-CTR, AES-GCM and ChaCha20-poly1305 | |
SSL encryption: AES-GCM, key exchange ECDH-ECDSA, HMAC SHA256, SHA384 | |
Encryption: AES (256/192/128), 3DES, DES, Blowfish, CAST128, ARCFOUR(RC4), ARCTWO(RC2) | |
Hashing Algorithms: MD5, SHA-1, RIPEMD160, SHA1-96, and MD5-96 | |
Key exchange: RSA, EDH-RSA, EDH-DSS, ADH | |
X.509 Certificate verification: RSA, DSA | |
Certificate authority (CA) list | |
Local database | |
RADIUS Authentication, Authorization and Accounting | |
TACACS+ Authentication, Authorization and Accounting | |
LDAP, NIS, Kerberos Authentication | |
RSA SecureID-agent or via RADIUS Authentication | |
SNMP v3 Authentication and Encryption support | |
IP Address filtering | |
Disable unused daemons | |
Active Directory via LDAP | |
Terminal Server | |
Telnet | |
SSH v1 and v2 | |
Rlogin | |
Auto session login | |
LPD, RCP printer | |
MOTD - Message of the day | |
Serial machine to Ethernet | |
Tunnel raw serial data across Ethernet - clear or encrypted | |
Raw serial data over TCP/IP | |
Raw serial data over UDP | |
Serial data control of packetized data | |
Share serial ports with multiple hosts/servers | |
Virtual modem simulates a modem connection - assign IP address by AT phone number | |
Virtual modem data can be sent over the Ethernet link with or without SSL encryption | |
TruePort com/tty redirector for serial based applications on Windows, Linux, Solaris, SCO, HP UX, NCR UNIX and AIX. For a complete list of all the latest drivers click here | |
TrueSerial packet technology provides the most authentic serial connections across Ethernet ensuring serial protocol integrity | |
RFC 2217 standard for transport of serial data and RS232 control signals | |
Customizable or fixed serial baud rates | |
Plug-ins allow customer or Perle provided plug-ins for special applications | |
Software Development Kit ( SDK ) available | |
Serial encapsulation of industrial protocols such as ModBus, DNP3 and IEC-870-5-101 | |
ModBus TCP gateway enables serial Modbus ASCII/RTU device connection to ModBus TCP | |
Data logging will store serial data received when no active TCP session and forward to network peer once session re-established - 32K bytes circular per port | |
Console Management | |
Sun / Oracle Solaris Break Safe | |
Local port buffer viewing - 256K bytes per port | |
External port buffering via NFS, encrypted NFS and Syslog | |
Event notification | |
Manage AC power of external equipment using Perle RPS power management products | |
Clustering - central console server enables access ports across multiple console servers | |
Windows Server 2003/2008 EMS - SAC support GUI access to text-based Special Administrative Console | |
Remote Access | |
Dial, direct serial | PPP, PAP/CHAP, SLIP |
HTTP tunneling enables firewall-safe access to remote serial devices across the internet | |
Automatic DNS Update | Utilize DHCP Opt 81 to set IOLAN domain name for easy name management and with Dynamic DNS support , users on the Internet can access the device server by name without having to know its IP address. See Automatic DNS update support for details |
IPSEC VPN client/servers | Microsoft L2TP/IPSEC VPN client ( native to Windows XP) |
Microsoft IPSEC VPN Client ( native to Windows Vista ) | |
Cisco routers with IPSEC VPN feature set | |
Perle IOLAN SDS/STS and SCS models | |
OA&M ( Operations, Administration and Management ) | |
SNMP V3 - read and write, Perle MIB | |
Syslog | |
Perle Device Manager - Windows based utility for large scale deployments | |
Configurable default configuration | |
Installation Wizard | |
Set a Personalized Factory Default for your IOLANs | |
Protocols | |
IPv6, IPv4, TCP/IP, Reverse SSH, SSH, SSL, IPSec/IPv4, IPSec/IPv6, L2TP/IPSec, CIDR, RIPV2/MD5, ARP, RARP, UDP, UDP Multicast, ICMP, BOOTP, DHCP, TFTP, SFTP, SNTP, Telnet, raw, reverse Telnet, LPD, RCP, DNS, Dynamic DNS, WINS, HTTP, HTTPS, SMTP, SNMPV3, PPP, PAP/CHAP, SLIP, CSLIP, RFC2217, MSCHAP |
* Available on 2 and 4 port models
Hardware Specifications
IOLAN SDS1 M | |
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Processor | MPC852T, 66 Mhz, 87 MIPS |
Memory | |
RAM MB | 32 |
Flash MB | 8 |
Interface Ports | |
Number of Serial Ports | 1 |
Serial Port Interface | Software selectable EIA-232/422/485 on RJ45 |
Modem Port | RJ11 connector, V.92/V.90 standard |
Sun / Solaris | Sun / Oracle ‘Solaris' Safe - no "break signal" sent during power cycle causing costly server re-boots or downtime |
Serial Port Speeds | 50bps to 230Kbps with customizable baud rate support |
Data Bits | Configurable for 5,6,7 or 8-bit protocol support Use TruePort to transparently pass 9-bit serial data |
Parity | Odd, Even, Mark, Space, None |
Flow Control | Hardware, Software, Both, None |
Serial Port Protection | 15Kv Electrostatic Discharge Protection (ESD) |
Local Console Port | RS232 on Serial Port |
Network | 10-base T / 100-base TX Ethernet RJ45 |
Software selectable Ethernet speed 10/100 Auto | |
Software selectable Half/Full/Auto duplex | |
Ethernet Isolation | 1.5Kv Magnetic Isolation |
Power | |
Power Supply | 120 V AC (USA), 230V AC (International) Wall Power Adaptor included |
Power Supply Options | Power via External power 9-30v DC, 4.8 Watts uses standard 5.5mm x 9.5mm x 2.1mm barrel socket, Power IN over serial cable |
Nominal Input Voltage | 12v DC |
Input Voltage Range | 9-30v DC |
Power External Device via Serial Port | +5v DC regulated, 1W max |
Typical Power Consumption @ 12v DC (Watts) | 1.7 (does not include power for devices connected to serial port) |
Indicators | |
LEDs | Power/Ready |
Network Link | |
Network Link activity | |
Serial: Transmit and Receive data per port | |
Environmental Specifications | |
Heat Output (BTU/HR) |
5.8 |
MTBF (Hours) | 414,649 |
Calculation model based on MIL-HDBK-217-FN2 @ 30 °C |
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Operating Temperature | 0C to 55C, 32F to 131F |
Storage Temperature | -40C to 66C, -40F to 150F |
Humidity | 5 to 95% (non condensing) for both storage and operation. |
Case | SECC Zinc plated sheet metal (1 mm) |
Ingress Protection Rating | IP40 |
Mounting | Wall or Panel mounting, DIN Rail mounting kit optional |
Product Weight and Dimensions | |
Weight | 0.23 Kg (0.5 lbs) |
Dimensions | 91 x 64 x 24 (mm), 3.6 x 2.5 x 0.92 (in) not including mounting tabs, 91 x 89 x 24 (mm), 3.6 x 3.5 x 0.92 (in) includes mounting tabs |
Packaging | |
Shipping Dimensions | 25.5 x 16.5 x 6.5 (cm), 10 x 6.5 x 2.6 (in) |
Shipping weight | 0.75 Kg including Power Adaptor |
Regulatory Approvals | |
Emissions | FCC Part 15, Subpart B, Class A |
CFR47:2003, Chapter 1, Part 15 Subpart B,(USA) Class A | |
ICES-003, Issue 4, February 2004 (Canada) | |
CISPR 32:2015/EN 55032:2015 (Class A) | |
EN55011 (CISPR11) | |
EN61000-3-2 : 2010, Limits for Harmonic Current Emissions | |
EN61000-3-3 : 2010, Limits of Voltage Fluctuations and Flicker | |
Immunity | CISPR 24:2010/EN 55024:2010 |
EN61000-4-2: Electrostatic Discharge | |
EN61000-4-3: RF Electromagnetic Field Modulated | |
EN61000-4-4: Fast Transients | |
EN61000-4-5: Surge | |
EN61000-4-6: RF Continuous Conducted | |
EN61000-4-8: Power-Frequency Magnetic Field | |
EN61000-4-11: Voltage Dips and Voltage Interruptions | |
Safety | IEC 60950-1(ed 2); am1, am2 and EN 60950-1:2006+A11:2009+A1:2010+A12:2011+A2:2013 |
CAN/CSA-C22.2 No. 60950-1-03 and ANSI/UL 60950-1, First Edition April 1st 2003 (Recognized Component |
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Other | Reach, RoHS and WEEE Compliant Directive 2011/65/EU restriction of the use of certain hazardous substances in electrical and electronic equipment and meets the following standard:: EN 50581:2012 |
CCATS - G168387 | |
ECCN - 5A992 | |
HTSUS Number: 8517.62.0020 | |
Perle Limited Lifetime Warranty |
IOLAN RJ45 Serial Connector Pinout | ||||||
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Pinout | Direction | EIA-232 | EIA-422 | EIA-485 Full Duplex | EIA-485 Half Duplex |
1 | Power In (9-30V DC) | Power In (9-30V DC) | Power In (9-30V DC) | Power In (9-30V DC) | ||
2 | in | DCD | ||||
3 | out | RTS | TxD+ | TxD+ | TxD+/RxD+ | |
4 | in | DSR | ||||
5 | out | TxD | TxD- | TxD- | TxD-/RxD- | |
6 | in | RxD | RxD+ | RxD+ | ||
7 | GND | GND | GND | GND | ||
8 | in | CTS | RxD- | RxD- | ||
9 | out | DTR | ||||
10 | Power out | Power out | Power out | Power out | ||
Optional Perle adapters for use with straight thru CAT5 cabling |
TCP |
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Using RAW TCP Sockets A raw TCP socket connection which can be initiated from the serial-Ethernet device or from the remote host/server. This can either be on a point to point or shared basis where a serial device can be shared amongst multiple devices. TCP sessions can be initiated either from the TCP server application or from thePerle IOLAN serial-Ethernet adapter. ![]() |
UDP |
Using Raw UDP Sockets For use with UDP based applications, Perle IOLANs can convert serial equipment data for transport across UDP packets either on a point to point basis or shared across multiple devices. ![]() |
Console Server |
Console Management For access to remote console ports on routers, switches,etc, Perle IOLAN’s enable administrators secure access to these RS232 ports via inband Reverse Telnet / SSH or out of band with dial-up modems. Perle IOLAN models with integrated modems are available. ![]() |
COM/TTY |
Connect Serial-based Applications with a COM/TTY Port Driver Serial ports can be connected to network servers or workstations running Perle's TruePort software operating as a virtual COM port. Sessions can be initiated either from the Perle IOLAN or from TruePort. ![]() |
Tunneling |
Serial Tunneling between two Serial Devices Serial Tunneling enables you to establish a link across Ethernet to a serial port on another IOLAN. Both IOLAN serial ports must be configured for Serial Tunneling (typically one serial port is configured as a Tunnel Server and the other serial port as a Tunnel Client). ![]() |
Virtual Modem |
Virtual Modem Enables the serial-Ethernet adapter to simulate a modem connection. When connected to the IOLAN and initiates a modem connection, the IOLAN starts up a TCP connection to another IOLAN serial-Ethernet adapter configured with a Virtual Modem serial port or to a host running a TCP application. ![]() |